Hydrocarbon-burner.



L. w. SWEM. HYDROCARBON BURNER. APPLICATION FILED JULY 12. 1915.

Patented Feb. 13, 1917.

P 1T @WFTWE LAWRENCE W. SWEIVI, OF WEST LIBERTY, IOWA, ASSIGNOR T0 E. L.WEBB & 00., OF

WEST LIBERTY, IOWA.

HYDEOCARBON-BURNER.

Specification of Letters Patent.

Patented lteb. T3, 191?.

Application filed July 12, 1915. Serial No. 39,507.

To all whom it may concern lBe it known that I, LAWRENCE W. Swen, acitizen of the United States, residing at West Liberty, in the county ofMuscatine and State of Iowa, have invented certain new and usefulImprovements in I'Iydrocarhon-Burners; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to heaters used by goldsmiths, jewelers andothers for soldering, brazing, melting small quantities of the preciousmetals, and the. like, and the object of the invention is to produce aheater which supplies its own intensifying blast, and requires noair-compression or blast from any other source.

The invention is fully disclosed in the description and claimsfollowing, reference being had to the accompanying drawing, in which-Figure 1 is a side elevation of a burner embodying my invention. Fig. 2is a view of the under side of the upper reservoir.

In the drawing, 1 designates a lamp adapted for the burning of a liquidhydrocarbon, preferably alcohol. This is provided with two burner tubes,2 and 3, the former being the service burner. The other, located at samedistance therefrom, is provided with a sleeve 4, which is connected witha small lever 5 pivoted at 6. By this means the amount of flame fromburner 3 may be regulated, from a full flame, as shown, to a very smallflame by elevating the sleeve. Attached to one side of the lamp is abracket 7, and to this is hinged a standard 8, which at its upper endconnects with a spring clip or fork 9 adapted to hold, in any desiredposition, a reservoir 10. This is provided with a suitable filling neck11, which should be hermetically stopped by a cap 12. Entering the topof the reservoir is a tube 13, which descends outside to the bottom, andforms a circle or coil thereunder, as shown in Fig. 2, terminating in anoutwardly extended nozzle 14.

The operation of the burner is illustrated in Fig. 1, and described asfollows:

Alcohol is supplied to the lower lamp through its filling-hole 15, Inthe same manner the upper reservoir is partially filled with the samematerial, preferably about two-thirds full. Both burnersof the lamp arelighted. In a minute or two the heat of the burner 3 generates gas inthe upper chamber, which escapes from the nozzle 14 with more'or lessforce according to the heat and pressure. When set in proper positionthis escaping gas, ignited, is forced across and commingles with themain flame of the burner 2, producing the intense heat of a blow-torch.In practice the upper chamber is so placed that the flame from 2 playsdirectly on the gas-tube, and so superheats the escaping gas. This maybe tempered to any desired degree of intensity by adjusting the sleeve4. When the lamp is no longer needed it is only necessary to extinguishboth flames, either by capping, or by first blowing out the flame at 3,and in a few moments that at 2, When the flow of gas has ceased.

The burner as so devised is extremely simple and convenient to operate,and is very eflicient in practice, a burner of about the size of thedrawing herein having capacity to melt 15 dwt. of gold in one and onehalf minutes. In soft and hard soldering operations also, it is equallyconvenient and satisfactory.

Having thus described my invention, I claim:

1. In a burner for liquid hydrocarbons, the combination of a lamp fontprovided with a service flame nozzle, a reservoir to hold liquid and thegas generated by heat therein, a gas-tube leading from the upper portionof the reservoir to its bottom, and forming a coil thereunder, with alaterally extending outlet, and means connecting with the lamp font forheating. said second vessel and its gas-tube.

2. In a burner for liquid hydro-carbons, the combination of a lamp fontprovided with two flame nozzles, a standard adjustably attached to saidfont, a reservoir having a gas-tube outlet to supply blast to one of thelamp flames, and a support for said reservoir adjustably connecting withthe standard, and mounted over one of the lamp flames.

3. In a burner for liquid hydro-carbons,

the combination of a lamp font provided With two flame nozzles, astandard hinged to said font, a reservoir having a gas outlet to supplyblast to one of the lamp flames, a compression clip therefor hinged tothe standard, the reservoir beingmounted over one of the lamp flames,and means for regulating said reservoir-heating flame.

In testimony whereof I aflix my signature in presence of two Witnesses.

LAWRENCE W. SWEM.

Witnesses:

G. M. NICHOLS, S. T. C. PHILLIPS.

Copies of this patent may be obtained for five cefit's'e'aeh'f byaddressing the Commissioner of Patents, Washington, D. G.

